Home / 126,568-174,666.88-81,933.76

Finding the Fourth Proportional to 126,568, 174,666.88 and 81,933.76

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Solution

The fourth proportional to 126,568, 174,666.88 and 81,933.76 is: 113,070.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,568 : 174,666.88 = 81,933.76 : x
  2. Step 2: Convert to fraction form
    126,568/174,666.88 = 81,933.76/x
  3. Step 3: Cross multiply
    126,568x = 174,666.88 × 81,933.76
  4. Step 4: Simplify right side
    126,568x = 14,311,114,225.87
  5. Step 5: Solve for x
    x = 14,311,114,225.87/126,568
  6. Step 6: Final answer
    x = 113,070.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.